package edu.geo.geoutils;



import java.sql.Array;
import java.sql.Blob;
import java.sql.CallableStatement;
import java.sql.Clob;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.NClob;
import java.sql.PreparedStatement;
import java.sql.SQLClientInfoException;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Savepoint;
import java.sql.Statement;
import java.sql.Struct;
import java.util.Map;
import java.util.Properties;

public class JDCConnection implements Connection {

    private JDBCConnectionPool pool;
    private Connection conn;
    private boolean inuse;
    private long timestamp;


    public JDCConnection(Connection conn, JDBCConnectionPool pool) {
        this.conn=conn;
        this.pool=pool;
        this.inuse=false;
        this.timestamp=0;
    }

    public synchronized boolean lease() {
       if(inuse)  {
           return false;
       } else {
          inuse=true;
          timestamp=System.currentTimeMillis();
          return true;
       }
    }
    public boolean validate() {
	try {
            conn.getMetaData();
        }catch (Exception e) {
	    return false;
	}
	return true;
    }

    public boolean inUse() {
        return inuse;
    }

    public long getLastUse() {
        return timestamp;
    }

    public void close() throws SQLException {
        pool.returnConnection(this);
    }

    protected void expireLease() {
        inuse=false;
    }

    protected Connection getConnection() {
        return conn;
    }


	@Override
	public Statement createStatement(int resultSetType,
			int resultSetConcurrency, int resultSetHoldability)
			throws SQLException
	{
		return conn.createStatement(resultSetType, resultSetConcurrency,
				resultSetHoldability);
	}

	@Override
	public Struct createStruct(String typeName, Object[] attributes)
			throws SQLException
	{
		return conn.createStruct(typeName, attributes);
	}

	@Override
	public String getCatalog() throws SQLException
	{
		return conn.getCatalog();
	}

	@Override
	public Properties getClientInfo() throws SQLException
	{
		return conn.getClientInfo();
	}

	@Override
	public String getClientInfo(String name) throws SQLException
	{
		return conn.getClientInfo(name);
	}

	@Override
	public int getHoldability() throws SQLException
	{
		return conn.getHoldability();
	}

	@Override
	public DatabaseMetaData getMetaData() throws SQLException
	{
		return conn.getMetaData();
	}

	@Override
	public int getTransactionIsolation() throws SQLException
	{
		return conn.getTransactionIsolation();
	}

	@Override
	public Map<String, Class<?>> getTypeMap() throws SQLException
	{
		return conn.getTypeMap();
	}

	@Override
	public SQLWarning getWarnings() throws SQLException
	{
		return conn.getWarnings();
	}

	@Override
	public boolean isClosed() throws SQLException
	{
		return conn.isClosed();
	}

	@Override
	public boolean isReadOnly() throws SQLException
	{
		return conn.isReadOnly();
	}

	@Override
	public boolean isValid(int timeout) throws SQLException
	{
		return conn.isValid(timeout);
	}

	@Override
	public String nativeSQL(String sql) throws SQLException
	{
		return conn.nativeSQL(sql);
	}

	@Override
	public CallableStatement prepareCall(String sql) throws SQLException
	{
		return conn.prepareCall(sql);
	}

	@Override
	public CallableStatement prepareCall(String sql, int resultSetType,
			int resultSetConcurrency) throws SQLException
	{
		return conn.prepareCall(sql, resultSetType, resultSetConcurrency);
	}

	@Override
	public CallableStatement prepareCall(String sql, int resultSetType,
			int resultSetConcurrency, int resultSetHoldability)
			throws SQLException
	{
		return conn.prepareCall(sql, resultSetType, resultSetConcurrency,
				resultSetHoldability);
	}

	@Override
	public PreparedStatement prepareStatement(String sql) throws SQLException
	{
		return conn.prepareStatement(sql);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys)
			throws SQLException
	{
		return conn.prepareStatement(sql, autoGeneratedKeys);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int[] columnIndexes)
			throws SQLException
	{
		return conn.prepareStatement(sql, columnIndexes);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, String[] columnNames)
			throws SQLException
	{
		return conn.prepareStatement(sql, columnNames);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int resultSetType,
			int resultSetConcurrency) throws SQLException
	{
		return conn.prepareStatement(sql, resultSetType, resultSetConcurrency);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int resultSetType,
			int resultSetConcurrency, int resultSetHoldability)
			throws SQLException
	{
		return conn.prepareStatement(sql, resultSetType, resultSetConcurrency,
				resultSetHoldability);
	}

	@Override
	public void releaseSavepoint(Savepoint savepoint) throws SQLException
	{
		conn.releaseSavepoint(savepoint);
	}

	@Override
	public void rollback() throws SQLException
	{
		conn.rollback();
	}

	@Override
	public void rollback(Savepoint savepoint) throws SQLException
	{
		conn.rollback(savepoint);
	}

	@Override
	public void setAutoCommit(boolean autoCommit) throws SQLException
	{
		conn.setAutoCommit(autoCommit);
	}

	@Override
	public void setCatalog(String catalog) throws SQLException
	{
		conn.setCatalog(catalog);
	}

	@Override
	public void setClientInfo(Properties properties)
			throws SQLClientInfoException
	{
		conn.setClientInfo(properties);
	}

	@Override
	public void setClientInfo(String name, String value)
			throws SQLClientInfoException
	{
		conn.setClientInfo(name, value);
	}

	@Override
	public void setHoldability(int holdability) throws SQLException
	{
		conn.setHoldability(holdability);
	}

	@Override
	public void setReadOnly(boolean readOnly) throws SQLException
	{
		conn.setReadOnly(readOnly);
	}

	@Override
	public Savepoint setSavepoint() throws SQLException
	{
		return conn.setSavepoint();
	}

	@Override
	public Savepoint setSavepoint(String name) throws SQLException
	{
		return conn.setSavepoint(name);
	}

	@Override
	public void setTransactionIsolation(int level) throws SQLException
	{
		conn.setTransactionIsolation(level);
	}

	@Override
	public void setTypeMap(Map<String, Class<?>> map) throws SQLException
	{
		conn.setTypeMap(map);
	}

	@Override
	public boolean isWrapperFor(Class<?> iface) throws SQLException
	{
		return conn.isWrapperFor(iface);
	}

	@Override
	public <T> T unwrap(Class<T> iface) throws SQLException
	{
		return conn.unwrap(iface);
	}

	@Override
	public void clearWarnings() throws SQLException
	{
		conn.clearWarnings();
	}

	@Override
	public void commit() throws SQLException
	{
		conn.commit();
	}

	@Override
	public Array createArrayOf(String typeName, Object[] elements)
			throws SQLException
	{
		return conn.createArrayOf(typeName, elements);
	}

	@Override
	public Blob createBlob() throws SQLException
	{
		return conn.createBlob();
	}

	@Override
	public Clob createClob() throws SQLException
	{
		return conn.createClob();
	}

	@Override
	public NClob createNClob() throws SQLException
	{
		return conn.createNClob();
	}

	@Override
	public SQLXML createSQLXML() throws SQLException
	{
		return conn.createSQLXML();
	}

	@Override
	public Statement createStatement() throws SQLException
	{
		return conn.createStatement();
	}

	@Override
	public Statement createStatement(int resultSetType, int resultSetConcurrency)
			throws SQLException
	{
		return conn.createStatement(resultSetType, resultSetConcurrency);
	}

	@Override
	public boolean getAutoCommit() throws SQLException
	{
		return conn.getAutoCommit();
	}
}
